﻿<!DOCTYPE html>
<html>
     <head>
          <meta charset="UTF-8">
          <title></title>
     </head>
	 <script type="text/javascript">
		function foc(){
			var oInput = document.getElementById("searchinput");
			if(oInput.value == "请输入你要查询的内容"){
				oInput.value = "";
			}
		}
		
		function blu(){
			var oInput = document.getElementById("searchinput");
			if(oInput.value == ""){
				oInput.value = "请输入你要查询的内容";
			}
		}
     </script>
     <body>
         <input type="text" id="searchinput" class="searchinput" placeholder="请输入你要查询的内容"/>
     </body>

</html>
